Shoe cementer



April 1949- v w. L. M KE NZIE 7 2,466,817

SHOE CEMENTER.

Filed March 16,1946 s SheetS-Sheet 1 lnvemor Wilbur LMc/(enzz'e i A I Ap12, 1 49. w. L. WKENZIE 2,466, 1

, SHOE CEMENTER Filed March 16, 1946 3 Sheet$-Sheet 2 Patented Apr. 12,1949 SHOE.- CEMENTERJLII Wilbur L: Ma'cKenzie; Beverlyf-Masss assignon tUnitedz ShoexMaohinery florporation, Fleming's ton, N. J., a corporationof NBWEJGESBY at? Application March 16, .1946, serial N70. -65418845 16Claimsau (Cl. 12-1) 1;

This inv'ention relatesto a' machine-for cement: ingshoe parts; and itisherein illustratedas em bodied 'in a machine particularly intended-forcementing-"the margin of "a platform coverf This*app1-ication' is acontinuation in part of an application-for-United States Letters PatentSeria1-No.-551,'681';'- filed August 29,1944, in my name i and-nowabandoned;

Shoesof the "slip-'lasted--typeare-usually pro 1 vided with-"a:platformsoleand/or 'a wedge heel and have-a priece'of flexible" materialextending i around at least part of the periphery of theshoew This.materialy call'ed the *platform cover;is usually stitched to'the'upperand, considering the shoetin inverted-position; is upturned-to surround the periphery of the platform sole; Com monly, 'theplatformcoveris laid'over the margin" of theLibottoni of theplatiorm "soleand.h'el'd:in positioniby Cement. Such soles are frequently'of 1yieldablernaterialwhich. in itself requires that the..".-p1a tf0ri'ncoverabe drawnrtautly" around the corner of the sole before it is laidover or lasted. andrheldlin placer-h Besidesthis', the, platforms."covermaterial is frequently cloth andadoes not haveva uniformmstretchlzL Furthermorarthe t man- 5 nenof sewingtthispiece of material .to theupper v. is such lthatwthe L'cover vmaterial must be bent arounelthetseam-uso formed; as. the. cover-is. drawn oven'theipenipherytoi theplatform. v

Many manufaoturersmrefer to-apply cement to then-sole.iitself-rbeforerit is positioned upon-the shoerand wheni thisn-is. done,:.theapplication: of cement:-.to the-cover is undertakenas it'projects.from-ithe bottomrof thelshoes A similar. problem-bat.- is encounteredin-thecementing of unlined uppers whichziare to-be cement-lastedand-inthe cement-e ings of certaimmoccasini:uppers for cement-last-- ing'.r-.=:Forf greatest :jacil-ityf of manufacture rthissz-s bandaofcementcshouldextend almostras far :as 5 theicorneriof themlatformtsole;for examplepandi. notiartherg becausewif cement gets: in betweentheoover-iand the periphery of the platforr'nsole; the-- two must be pulledapart before the icover can be satisfactorily'lasted: 'On the otherhand','- it is desirable to have the-cement lieelose-to the periphery ofthe platform 's01ebecause this wi1l--insure*a-firm*bottom structure forthe*"at-:.=; tac-hment 'of the-outer sole-n One-important obj ectof theinvention is topro: 5 vide a=-machirre=whioh will apply cement to only.that'portion-ofthe margin of thematerial which is to be lasted over-the"bottom'of the shoes Anothercobj'ect" of' the inventionis to provide aprojeoting band of upper material-and will apply 2* a marginal stripe ofc'einenttheretor' Thsewbjeets are*--efiected"-in the" illustratedmachinet and in accordance w-ithfeatures-of the invention byfeedinthe'*marginalband ofpro jecting" material between a coatingapply-ingroll anda supporting roll' in a' direction inclined to the"axis of the"=applying--'roll and, hencer-at an angle" to the"feedingforceexerted by *the "rolls; thereby-to 'create a'wedgingforce'which tensions and-"sometimesstretches'the material bemg-coat-' ed.-The-*direction -of movement-of the material to be coated isdetermined by means of avwork rest'posi-tioned at or in front of the-free"end= of 'thecementwpplyihg roll-to engage "the bottom-of the"shoe?" Thieworkresty'which 'cooperateswith the coatingand-feeding means"to tension the marginal material, has a: work-engagingsurface" parallelto" the angular direction-mentioned above anclyinone-forfn, iti's'provided by 'a wedge-shaped abutmentrsupportedat the end-==ofthe*ttypplyingroll hufiseparate therefromfl Another feature ofthe*invention- -resides-in a" mach-ine -"haiiing cover-coating andtensioning imeasn's" whichis provided wit-h means-interposed between the'coatingmeans and-th'e'platfornvsol acting tospacetheband--=fa1**'enough-'from th corn-er'of thesole'sothat-*con-taet of the coating with the peripheral edgeof the 'sole'is prevented-" 'e'ven'wher'rthetensiomon the coverds'relieved. s

In accordance with a'nother"feature ofthe ventioni-the work restcomprises a smoothg coni ca1-=button--illustratedas attached to theendot thecementappIyinQ-roIl and" againstwhi'ch'th previouslycoatedplatform" sole rnay be reste without disturbance of-thesurface*thereofa Fur thermore,="-and-asillustrated, thebas'eof the coniV calm'ember is spaced 'asmal-l fraction *ofan inch from the end of theapplying roll to provide -ar clean-margin betweentheban drof cementandthe corner ofthe platform' solee With both this buttoii rest-andwith-thewedge shafied'abuti'nentwoheeemponent of feedingior'ceefietive1y=- stretches-nthe= flexible material and 7 draws the!"boiitoniof the shoe up close -to the v endofthe' bement rollwwhereby that width0f the it materiat which is eoated will iextend'rnearlyz up to, but notbeyondg the" corner of the rplatformm sole! These and-other feaituresfofthe inventiona-wi machine which-simultaneously will tension the c'oatingmeichirfe fori latex type cement' with the w rolls in open positionready to receive the work;

Fig. 2 is a plan view showing a portion of a horizontally positionedshoe, partly in section, with its platform cover gripped between therolls and with the bottom of the platform sole upright and restingagainst an abutment;

Fig. 3 is an elevation of the work-gripping rolls and shows a portion ofthe heel end of a shoe, partly in section with the shoe positioned toeend up and with the platform cover being treated by the machine;

Fig. 4 is an angular view, with parts broken away, of the work grippingrolls as embodied in a machine for applying cement of the solvent typeand having a conical button work rest;

Fig. 5 is a vertical section through the cement roll and adjacent partsof Fig. 4 with a portion of a shoe held in an upright position as theadjacent part of the cover is cemented; and

Fig. 6 is a side elevation of similar work-engaging rolls in a machineof the type shown in Fig. 1 but provided with a conical work rest.

The invention, as illustrated in Figs. 1 to 3, is embodied in acement-applying machine designed for, latex-type cements, the machinebeing of the type shown in Fig. 6 of United States Letters Patent No.1,851,162, granted March 29, 1932, upon an application filed on behalfof John W. Cosgrove, deceased. Such machines include an applying rollIll which is mounted on the outer end of a shaft carried in hearings ina frame [2 and supplied with adhesive by means of a series of rollsincluding a pick-up roll 14 which dips in a trough l6 supplied from aninverted bottle l8. Pieces of work are presented to the under surface ofthe periphery of the applying roll in and are held in contact therewithby means of a coacting feed roll 20 journaled in an arm 22 which ispivoted in the frame and can be raised at the will of the operator togrip the work. Machines of this type were designed for and have beenwidely used for the application of cement to a flexible, loose piece ofupper material or the like.

To facilitate the presentation of a flexible piece projecting from theperiphery of the bottom of a shoe, the machine has been provided with aworkguide or Work-rest abutment 24 which has a terminal surface at or infront of the unobstructed and free end of the applying roll In. Theabutment 24 preferably is vertically adjustable upon a T-shaped block26, and the latter is horizontally adjustable upon an arm 28 which isattached to the frame 12 of the machine. The lower end of this abutment24 provides a bevel faced supporting surface 30 against which the bottomof a shoe part 32 may be pressed to position the shoe as it is movedlengthwise or is rotated about a toe or heel end and serves to guide thework through the machine.

This shoe-bottom part 32 may be a wedge heel or a platform sole or, inthe case of unlined uppers 0r moccasin work, it may be an insole. In theillustrated shoe S (Figs. 2 and 3) which is mounted upon a last L, aninsole 34 is positioned inside of the platform sole 32 and is attachedas by means of adhesive to a so-called sock lining 36, which is acharacteristic portion of slip-lasted shoes. Attached by a seam 48 tothis sock lining is the shoe upper 31 and also a peripheral band offlexible material which, in the illustrated shoe construction,constitutes a cover 38 for the periphery of the platform sole 32 and isintended to be lasted over the bottom surface 40 of that sole.Consequently, it is desired to apply adhesive to the inner margin 42 ofthe platform cover up to a point close to the corner 44 of the platformsole so that the lasting margin will be coated with cement while, on theother hand, a clean margin of about one sixteenth of an inch short ofthe corner 14 will be left so that the cover 38 will not stick to theperiphery of the sole and need to be pulled away before it can belasted.

Attention is called to the shape of the bottom portion of the abutment24 which is supported beside and at the unsupported end of roll I0. Theabutment, being tapered toward the rear (Fig. 2) with respect to thedirection of feeding movement, provides a bevel supporting or abutmentsurface 30 for the shoe bottom member 32 which is inclined with respectto and forms an acute angle with a plane normal to the axes of the rollsl0 and 20, when observed in horizontal section as in Fig. 2, and causesthe margin of the cover 38 to be stretched as the shoe is wedged awayfrom the rolls in an angular direction with respect to a normaldirection of feeding movement which would be imparted by the rolls I0and 20 if there were no such guide surface. It will be understood thatthis so-called normal direction is parallel to the end surfaces of therolls and hence normal to their axes and in a substantially horizontaldirection. Consequently, there is a cross feed action as the shoe isdiverted from this normal direction so that the cover is stretched tautin a direction normal to its attaching seam A 8 and. permits theapplication of cement to a width of margin 42 which is substantially thesame, making allowance for the spring-back of the material after thetension is relieved, as that which is to be lasted over the bottom 40 ofthe platform sole. The magnitude of this stretching force depends uponthe angle of the taper of the supporting surface 30 and can be made verysubstantial. To avoid damaging the bottom 40 of the platform sole byinadvertent collision between it and the near corner of the roll H], theguiding abutment 24 is extended at 46 (Fig. 2) to provide a guard forsaid roll.

The flexible material projecting along the periphery of the bottom of alasted shoe which is to be presented to the machine may extend onlyaround the forepart thereof or may extend around the whole of theperiphery. In either case, the shoe will occupy an up-and-down positionat least once during the traverse of the work and possibly twice. It isessential, therefore, that there shall be no interference between thebottom of the shoe and the other parts of the machine and, to facilitatethe swinging of the work through this upright position, it will benoticed that the lower end of the abutment 24 is also tapereddownwardly, as is indicated in the vertical section thereof shown inFig. 3. As a consequence, the upper part of the work tilts away from themachine and is not likely to come in contact with it.

In presenting a piece of work to this machine, the shoe will be heldhorizontally with its bottom surface upright, and the marginal portionof the platform cover 38, for example, will be inserted between theingoing peripheral surfaces of the rolls l0 and 2!), and the roll 20will be lifted to grip the work. The bottom surface 40 of the shoe willrest against the inclined surface 30 of the abutment 24 and, as thecement is applied to the margin 42' of the cover, the latter will bevigorously stretched away from its attaching seam 4-8 by a componentpull which will be resisted by the supporting surface 30.

In the use of the type of machine illustrated in Figs. 4 and 5, anddesigned for usewith a solvent-type cement, the work is gripped betweenagrooved and corrugated cement-applying roll 'and a work-supporting roll52. The outer ends of these rolls are exposed and freely accessible. Thearrangement, generally, is like that found in machines of the typeillustrated in United States Letters Patent No. 1,380,360, granted June'7, 1921, upon the application of John W. Cosgrove, where thesupply ofcement is contained in a receptacle 54,. and the cement roll 50 andassociated parts are carried in a detachable block which has aprojecting stud 58 received in a socket in the frame 60 in which thereceptacle is formed. Journaled in this frame, is a drive shaft 62 forthe cement roll, and the end of the shaft is hollow and provided withprojecting lugs 6d for coaction with the notches in a sleeve-likeextension 55' integral with the applying roll 50. The quantity of cementcarried out by the applying roll from a. passage 68 extending betweenthe receptacle 54 and the surface of the roll is controlled by astripper it! the position of which may be regulated by a screw 12 in awell-understood manner. A. closure M for this passage 68 and to coverthe end of the roll is attached to the frame 60 by screws 76 and extendsover the near periphery of the cement roll to prevent contact of the,cover with the applying roll 50 except at the bottom thereof. A shieldfor the remainder of the periphery of the roll 50 is supported on theblock 56.

At the end of the applying roll is a member rotatable therewith in theform of a conical button 80' which serves, substantially like thesurface 30, as a bevel faced sole deflecting abutment or guide and isprovided with a stud 82 received in the hollow end of the drive shaftand attached thereto by a threaded portion 84. At substantially' theapex of this conical button work rest is a socket 86 for an attachingwrench.

In the use of this type of machine, the platform cover 38 will begripped between the cement-applying roll and the driven supporting roll52, and the bottom of the platform sole 32 will bear. against theconical surface of this work rest 80' along a radial line in the sectorof the lower quarter of the near side. The exact location of this linewill vary as the periphery of the shoe is traversed just as is broughtout in the case of the surface 3% in the form of the invention shown inFigs. 1 to 3. The result will be to" impart a cross-feed action, as inthe previously' described machine arrangement, which will stretch thecover and apply to it a marginal band of cement one edge of which isseparated from the corner of the platform sole by a clean margindetermined by the thickness of the edge of the rest 8-5! plus theclosure plate M plus a spacing washer 99, the latter being between thebase of the conical work-rest button 89 and a shoulder 92 on the end ofthe applying roll 50. A nominal clearance between the washer and theplate M (which clearance is much exaggerated. in the drawing) avoidsfriction between rotating and stationary parts, These spacing washers 98are of less diameter than the roll 50 and the base of the button til andthereby provide a groove between the two. One or more may be employed,according to the width of clean margin which is desired.

In Fig. 6, the invention is illustrated as applied to. a machine of thelatex type, such as is shown in Fig. 1, but, here, the work rest is inthe form of a conical button 93 which is attached to the end of theapplying roll Illa by means of a threaded stud 94, and the base of theconical: member 93 is separated from the endof the applying roll bymeans of one or more washers 96 which, with the button 93, determine thewidth of the clean margin between the band of cement and the corner ofthe platform sole. For convenience, a coverguiding finger 98, supportedupon the frame of the machine, is arranged to extend across theperiphery of the applying roll Illa adjacent to the bite between thatroll and the supporting roll 29a to pull out covers which may, becauseof scant material, tend to lie too close to the. adjacent surface of thesole.

The presentation of the work in this machine will 'be the same as withthe type of machine in Fig. 4 and the function of the work rest will bethe same. Either machine is applicable to the uppers of unlined shoesand of certain moccasin uppers for cement lasting as well as to thecovers of platform shoes and the mode of operation will be the same.

Having thus described my invention, what I claim as new and desire tosecure by Letters Pat;- ent of the United States is:

1. In a cement applying machine for platformcovers to be lasted over theadjacent bottom surfaces of platform soles, coacting: rolls having theiradjacent outer ends exposed and freely accessible to grip a platformcover as it projects beyond the platform sole, means for driving saidrolls, means for supplying cement to one roll, and a work rest on oneroll for contact with the bottom surface of the adjacent platform sole.to guide the shoe bottom in a plane forming an acute angle with a planenormal to the axis of said rolls, thereby to cause the cover to betensioned.

2. In a cementing machine for platform covers to be lasted over theadjacent bottom surfaces of platform soles, coacting cover-grippingrolls at least one of which is driven, means for supplying cement to oneof the rolls, and a Workpositioning member rotatable with the latterroll and positioned for contact With the adjacent. surface of theplatform sole.

3. In a machine for applying cement to the lasting margin, of shoe-uppermaterial on a last, to be lasted over the adjacent surface of ashoebottom member, coacting rolls, at least one of which is driven, forgripping said margin, means for supplying cement to one of the rolls,and a. conical button carried by the latter roll to provide a guide forengagement with the adjacent Stir-- face of the shoe-bottom member todeflect the latter away from the path of feeding movement, determined bythe margin-gripping rolls so as thereby to tension said margin.

4. In a cementing machine for platform coversto be lasted over theadjacent bottom surfaces of platform soles, coacting cover-grippingrolls at least one of which is driven, means for supplying cement to oneof the rolls, and a Work positioning member in the form of a conicalbutton carried by the latter roll at its exposed end for contact withthe adjacent surface of the platform sole, the base of said button beingspaced. axiallyfrom the end of the applying roll thereby to provide aclean margin between the band of cement applied to the cover and thecorner of the plat-- form sole.

5. In a cementing machine for platform covers to be lasted over theadjacent bottom surfaces of platform soles, coacting cover-grippingrolls at least one of which is driven, means for supplying. cement toone of: the rolls, awork-positioning conical button attached to theexposed end of the latter roll for contact with the adjacent surface ofthe platform sole, and a spacer of less diameter than the rollinterposed between the base of said button and the end of the applyingroll thereby to provide a groove between the applying roll and thebutton which will leave a clean margin between the band of cementapplied to the cover and the corner of the platform sole.

6. In a cementing machine for platform covers to be lasted over theadjacent bottom surfaces of platform soles, coacting rolls, means fordriving at least one of said rolls, said rolls being exposed and freelyaccessible at one end, a passage for supplying cement to the upperportion of one of the rolls defined at one side by a depending closureplate limiting the width of the band of cement applied by said roll, anda conical button on the end of the applying roll, there being a groovebetween the base of said button and the applying roll receiving aportion of said closure plate Within the periphery of said roll therebyto determine a clean margin between the stripe of cement applied to thecover and the adjacent corner of the platform sole.

'7. In a machine for applying cement to the lasting margin, ofshoe-upper material on a last, to be lasted over the adjacent bottomsurface of a shoe-bottom member, margin-gripping means for progressivelycementing and feeding said margin, means for supplying cement to saidmeans, and a bevel faced sole deflecting guide for Wedging the sole awayfrom the gripping means to tension the margin as it cements it.

8. In a machine for applying cement to the margin of flexible materialdisposed about at least part of the periphery of a partially completedshoe and extending beyond the bottom thereof, an applying roll supportedfor rotation at one end of a driven substantially horizontal shaft, acoacting work-supporting roll, means for supplying cement to theperiphery of said firstnamed roll for application to the inner margin ofthe material, and a rest at the unsupported end of said applying rollhaving a surface against which the bottom of the shoe may be pressed tofacilitate the guiding of the margin of the material in a directionother than normal to the axis of the applying roll to cause the materialto be stretched as a coating is applied to its margin, a horizontalsection through said axis intersecting said surface along a line lyingat an acute angle to said axis.

9. In a machine for applying cement to flexible material disposed aboutat least part of the periphery of a partially completed shoe andextending beyond the bottom thereof, an applying roll supported forrotation at one end of a driven shaft, a coacting Work-supporting roll,means for supplying cement to the periphery of said first-named roll forapplication to the inner margin of the material, and means, adjacent tothe unsupported end of said applying roll, for engagement by the bottomof the shoe to position it in a plane forming an acute angle with aplane normal to the axes of said rolls, said latter means beingoperative to guide the margin of the material angularly with respect tothe path of travel of a point on the periphery of the applying roll.

10. In a'machine for applying cement to flexible material disposed aboutat least part of the periphery of a partially completed shoe and extending beyond the bottom thereof, an applying roll supported for rotationat one end of a driven shaft, a coacting work-supporting roll, means forsupplying cement to the periphery of said first-named roll forapplication to the inner margin of the material, and a guard for thatcorner of one of said rolls toward which the shoe is moved as theprojecting material is coated, said guard providing also an abutment atthe front end of the applying roll and against which the shoe may bepressed to facilitate guiding the marinal material angularly to producea cross feed which will stretch the material as it passes between therolls.

11. In a cementing machine, coacting rolls for gripping the margin ofmaterial projecting from the bottom of a shoe and intended to be lastedover that bottom, means for driving at least one of said rolls, meansfor supplying cement to the periphery of one of said rolls, whereby theyfeed the material and apply cement to a margin thereof, and shoe-bottomabutting means cooperating with said rolls concurrently acting to forcethe bottom of the shoe away from the roll end thereby to tension thematerial, said abutting means having a terminal surface at the end ofone roll and providin a guide rest for the bottom of the shoe permittingfree rotation of the shoe to pre sent the material to the coating roll.

12. In a cementing machine, coacting rolls, unsupported at one end, forgripping the margin of material projecting from the bottom of a shoe andintended to be lasted over that bottom, means for driving one of saidrolls, means for supplying cement to the periphery of one of said rollsfor application to the inner margin of said projecting material, and anabutment in front of the unsupported end of the cementing roll, saidabutment havin an unobstructed, exposed work-engaging face for guidingthe shoe bottom at an angle to the direction of feed imparted by therolls and serving to cause the projecting material to be tensioned.

13. In a cementing machine, apparatus including coacting rolls forgripping the margin of material projecting from the bottom of a shoe andintended to be lasted over that bottom, said rolls being unsupported attheir outer ends, means for driving at least one of said rolls, meansfor supplying cement to one of said rolls for application to one face ofsaid margin, and a wedge-shaped abutment at the unsupported end of saidapplying roll, said abutment serving as a rest for the bottom of theshoe pressed against it and having a thin portion adjacent to theincoming Work and a thick portion adjacent to the leaving portion of theWork.

14. In a machine for applying cement to flexible material disposed aboutat least part of the periphery of a partially completed shoe andextending beyond the bottom thereof, a cement-applying roll mounted forrotation about a horizontal axis upon a shaft projecting laterally fromone end of said roll, means for supplying cement to the periphery ofsaid roll, a work-supporting roll coacting with the under side of saidapplying roll, and an abutment positioned adjacent to the unsupportedend of said applying roll, said abutment being tapered rearwardly withrespect to the direction of feeding movement imparted by said rolls andarranged to engage that portion of the bottom of the shoe over which theprojecting material is later to be lasted and attached by the appliedcement so as to require the feed of the work in such an angular relationto the normal pull or force exerted by the rolls, in their feedingcapacity, as to stretch the part being coated.

15. In a machine for applying cement to flexthe unsupported end of saidapplying roll, said 5i abutment being tapered rearwardly and downwardlywith respect to the direction of feeding movement imparted by said rollsand arranged to serve as a guide for that portion of the bottom of theshoe over which the projecting material is later to be lasted andattached by the applied cement.

16. In a coating machine for a platform shoe having a flexible platformcover surrounding the periphery of a platform sole on the shoe andextending at a sharp angle to the shoe bottom, a bevel facedsole-deflecting abutment, and covergripping and feeding means for alsocoating the inner margin of the cover, said means cooperating 10 withthe abutment in also tensioning the cover away from the sole, saidabutment being interposed between the coating means and the platformsole to space the band of coating material far enough from the corner ofthe sole to prevent contact of the coating material with the peripheraledge of the platform sole when the tension on the cover is relieved.

WILBUR L. MACKENZIE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,757,180 Erickson May 6, 19301,855,226 Estey Apr. 26, 1932 1,922,020 Voorhis Aug. 8, 1933 1,928,693Johnson Oct. 3, 1933 2,038,561 Hadaway Apr. 28, 1936 2,154,943 King Apr.18, 1939 2,313,914 Batchelder Mar. 16, 1943

